| Presentation | 2012-12-12 An Extention of Reputation System with Secrecy for Negative Feedbacks Tomoya Nomura, Toru Nakanishi, Kan Watanabe, Nobuo Funabiki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | For security in a P2P service such as Internet auctions, a reputation system to evaluate each other anonymously is used, but the administrator can grasp the change of user's reputation points, it becomes a problem of privacy. Thus, a reputation system with the secrecy of reputation points even for the administrator was proposed, where the reputation points are maneged in the anonymous certificate. However, in the system, there is a problem that negative feedbacks are not reflected in user's reputation points. In this study, by preventing user showing user's reputation points until updating after user recieving reputation points, we extend the reputation system to cope with negative feedbacks by using accumulators. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Anonymity / Reputation system / Anonymous certificate / Negative feedbacks |
| Paper # | ISEC2012-73 |
| Date of Issue |
| Conference Information | |
| Committee | ISEC |
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| Conference Date | 2012/12/5(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Information Security (ISEC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An Extention of Reputation System with Secrecy for Negative Feedbacks |
| Sub Title (in English) | |
| Keyword(1) | Anonymity |
| Keyword(2) | Reputation system |
| Keyword(3) | Anonymous certificate |
| Keyword(4) | Negative feedbacks |
| 1st Author's Name | Tomoya Nomura |
| 1st Author's Affiliation | Graduate School of Natural Science and Technology, Okayama University() |
| 2nd Author's Name | Toru Nakanishi |
| 2nd Author's Affiliation | Graduate School of Natural Science and Technology, Okayama University |
| 3rd Author's Name | Kan Watanabe |
| 3rd Author's Affiliation | Graduate School of Natural Science and Technology, Okayama University |
| 4th Author's Name | Nobuo Funabiki |
| 4th Author's Affiliation | Graduate School of Natural Science and Technology, Okayama University |
| Date | 2012-12-12 |
| Paper # | ISEC2012-73 |
| Volume (vol) | vol.112 |
| Number (no) | 342 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |